Fire and burglar alarm



(No Mofll.) 2 Sheets-Sheet 1..

TQJ. GORDON. FIRE AND BURGLAR ALARM. No. 469,64 Patented Feb. 23. 1892.KER

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l/vvlmaoo co 2 Sheets-Sheet 2. 1 T. J. GORDON. FIRE AND BURGLAR ALARM.

Patented Feb. 23, 1892.

UNITED STATES PATENT OFFICE.

THOMAS J. GORDON, OF EUREKA SPRINGS, ARKANSAS, ASSIGNOR, BY DIRECT ANDMESNE ASSIGNMENTS, OF TVVO-TI-IIRDS TO ROBERT L. MEADOR, OF SAME PLACE,AND GEORGE IV. FINN, OF MUNDELL, ARKANSAS.

FIRE AND BURGLAR ALARM.

SPECIFICATION forming part of Letters Patent No. 469,648, dated February23, 1892.

Application filed September 4, 1891. Serial No. 404,770. (No model.)

T 00 whom it may concern: with an eye, through which is passed the wireBe it known that I, THOMAS J. GORDON, a or cord (J. citizen of theUnited States, and a resident of To each window-casing, just above theup- Eureka Springs, in the county of Carroll and per edge of the lowersash, is secured a small 5 State of Arkansas, have invented certain newarm or lever E, pivoted at its center. One

and useful Improvements in Fire and Burglar arm 6 of this lever isadapted to be turned 5 5 Alarms; and I do declare the following to beinto position to be engaged by said sash when a full, clear, and exactdescription of the inraised and the other end or arm 6 is provention,such as will enable others skilled in vided with a small hook, which,when the to the art to which it appertains to make and use alarm is set,engages an eye f on a wire or cord the same, reference being had to theaccom- F, which at its upper end is connected to the panying drawings,and to letters of reference opposite arm of the lever D. It willtheremarked thereon, which form a part of this fore be seen that whenany window is raised specification. the cord F will be pulleddownwardly, slack- I 5 Figure 1 of the drawings is a representation ingthe tension of cord O. hen the alarm of the alarm and is a diagrammaticview. is not set, the hook and eye are disconnected. Fig. 2 is aperspective view of the connecting Connection may be made with bothsashes, if mechanism over the door. Fig. 3 is a detail desired. View,enlarged, of same. Fig. 4 is a view of For each door I secure to thecasing by a 20 the mechanism as arranged on windows. Fig. central pivotan angle iron or lever G, to one 5 is a face View of the alarm. Fig. 6is a detail arm of which is fastened a cord H, connected View of one ofthe connecting-levers. to one arm of the angle-lever D. The other Thisinvention has relation to certain new arm is adapted to be turned downwhen the and useful improvements in burglar and fire alarm is set infront of the door. WVhen the 25 alarms; and it consists in the novelconstrucdoor is opened, said arm will be engaged tion and combination ofparts, as hereinafter thereby and the cord H pulled, causing thedescribed, and pointed out in the claims. slacking of the wire or cord0. When not in In the accompanying drawings, illustrating use, the angleirons or levers may be turned the invention, the letter A designates theinup out of the way. In connection with these 0 terior of a room orbuilding, to which my inlevers G, I may employ two small angle-springsvention is shown as applied. G, which, when the door is opened, willhold In putting my alarm into operation I first said levers back, andwhich will hold them take a spring, such as that shown at B, and againin operative position when the door is secure it to the wall of a roomor building at closed. These two springs are secured to the 5 one endthereof and near the ceiling. This casing just under the lever Gone oneach spring may consist of a piece of Wire bent to side of the lower armthereof. The shorter .85 form an eye or coil, having the diverging armsof said springs extend toward each other arms a a. On the end of the armor is an and come nearly together at their free ends. I eye o to which Isecure one end of a cord or When the door is opened, it will engage said40 wire O, which runs the length of the room or arm of the lever,forcing it through between building to the opposite end or to whereverthe ends of the springs and holding it there 0 desired, and is connectedto an eye or screw until the door is closed, when it will be again I),said cord running over anti-friction pulleys pushed back inside of saidsprings. w herever necessary. The springB is arranged I will nowdescribe the alarm, which is 10- 45 so that its tension will normallyhold the cord cated at any desired point in the building.

or wi 0 mm, Inclosed in a suitable box or case is a spring 5 Over eachdoor or window I provide an aroand pinion-gear K with winding mechanismshaped lever D, pivotally secured at its cen- 70, similar to thatemployed in clock-work, proter and having one of its arms cl providedvided with an escapement J to which is connected a bell-hammer, whichunder the movement of said escapement sounds a bell L. M is a bail-leverdevice pivoted within said casing and having an arm m, which projectstherethrough and is connected with a cord or wire N to the main wire 0.At the opposite end of this bail device is an arm n, which, when the armm is pressed or held forward, engages the stem of the bell-hammer,throwing the escapement out of gear and preventing the sounding of thealarm, said stem in such position being'held between the arm n and thepost P. The tension of the wire or cord 0 is sufficient to normally holdthis lever forward and prevent the alarm from sounding. When, however, asash is raised or a door opened and the tension relaxed, a springpresses against said bail device, throwing it backwardly, and the alarmis sounded. It will be seen, moreover, that if a fire breaks out in thebuilding, as soon as the flames reach the cord between theattaching-spring B and the alarm, said cord, if of inflammable material,will be burned in two, thus releasing the tension and sounding thealarm. A connection R may also be made between the doorbell knob at thedoor and said alarm to be used as an ordinary door-bell. It may also beconnected with and operated, by push-buttons. These alarms may beconveniently carried and put up temporarilybytraveling men or othersstopping at hotels or boardinghouses, requiring but a few screws and afew moments time.

The cords O, F, and B may be made of any ing and having one of its armsflexibly connected with an arm of the lever D and the other arm arrangedto be engaged by the opening of the door, and the device; for holdingsaid lever G, substantially as specified.

2. In an alarm device, the combination, with the alarm and thetension-cord, of a. lever G, pivotally secured tolthe casing of eachdoor and having a flexible connection with said cord, said lever havingan arm arranged to be engaged. by the door when opened, and theangle-sprin gs G, secured to the casing"- and operating, as described,to hold said lever in position, substantially as specified.

In testimony whereof Iaflix my signature in presence of two witnesses.

THOMAS J. GORDON.

Witnesses:

WILLIAM R. NIOHOLES, ROBERT L. SMITH.

